Thomas and Lauryn help me a little. Thomas has a behaviour chart and if he doesn't mind (like pick up his toys when I ask) he gets a black mark against him for the day (3 black marks = red day, <3 black marks = green day and 10 green days = treat/prize/fun activity of his choice). This has really helped with keeping his toys picked up. Lauryn likes to help wipe things down and vacuum. I got her an electric sweeper for her birthday.
